Improvement in steam-goveknobs



fJoHN TREMPER,lonwrnMineron, nnLAWARn.

'Letters Patent No. 74,454, Yelated February 11,1868.

IMPROVEMENT 1N STEAM-Governors.

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'rc ALL wHoM IT- MAY constrainl Be it known that I, JOHN TREMPER, of Wilmington, in the countyv of New Castle, and State of Delaware, havel invented la. new and'usefullmprovement in Governors, of-whi'ch the following isa full, clear, and exact description, reference being had to the accompanying drawing forming part of this specification, and in which- Figures 1 and 2 represent partly sectional elevations ofa governor constructed according to my improvement.

Myinvention lconsists in a. novel constructiouof governor, embracing balls which, in their outward action,

' radiate or diverge from their centre of motion, or revolving verticalshaft, along guidijnglarms or rods, said balls being hinged or pivoted bybraces to a` collar connected with the valve-rod, and controlled inl their action by i springs of spiral or other form. Also, in combination therewith of separately-detachable springs, whereby the Vvelocity maybe increased or decreased .at pleasure, to adapt it to the character of work to be performed.

Said invention, likewise, further consists in a combination of sliding thimbles or sleeves, with the spiral 'springs arranged to act on the balls., to relieve the latter, or shafts on 'which they slide, of friction or rub of the springs in the working ofl the balls; likewise in certain novel arrangements of the springs.

Referring to the accompanying drawing, A represents the main revolving or vertical driving-shaft of the governor, and B the rising and falling valve-'rod sliding therethrough, and carrying-at or near its topa ccllar'),4

and, it may be, cap or other mounting. D is the hub of the shaft'A, fromwhich radiate arms, rods, or shafts E-,Epon which thehalls F F .are hung to slide. l g Il h'ese balls` are connected by braces Gr` G; in'a hinged c r free manner with the collar C -ot' the valve-rod, and have their action, and that of the valve-rod, controlled by springs, that may be arranged as follows: Thus, there may be a spiral spring, H, arranged to hug the shaft A', and made to bearon the hub D, and under the collar C ofthe valve-rod, andilat or brow-springs I I, 4of which any desired i number may be used, the same being made to toe or gear with, et their ends, in a loose manner, by entering grooves a b in the collar C and hub D, so that they may be readily attached'and detached, or be replaced by other springs of dierent strength, Vto suit a varied speed or any required action ofthe governor. The balls are constructed'with tubular projections c c, between .the inner ends of which, and (say) grooved collars fastenV the endspf the arms E E, the springs J are arranged to bear or press, the'same surrounding `the arms or shafts E "E, andA lying within the balls. VEach or all of4 these several spring arrangements or attachments exercise the same control or eii'ect'on the governor, and either of such may be used, separately or in combination with one another, or all together, theicentrifugal force produced bythe governor operating to throw cnt theballs against lthe action 'of the springs. In case of the springs J being used, it is preferable to provide the'arms E E with one or more loose slid`ing-sleeves or thimbles, K, around which the springs J are wrapped, to prevent thesprings from catching and producing irregular or excessive friction on the rods o r shafts E E, or interior of the balls, as in bending, during the backing or falling of the balls, they would be apt'to, said .sleeves K serving to keep the springs straightin their action, and to make the rub or friction on the rods E E light andnniform, by taking oit-the rubor friction of the springs thereon. There may be'twoor morer of these thimbles K on each of the `rods E. E, so as to form guides or bearings throughout the greater portion of or at diii'erent points in the 'length of the springs, or these latter may be made in sections and slipped over opposite ends of a/ sliding thimble provided with a dividing-collar. Such alterations, however,inv'olve no radi-cal change, the peculiar construction and action ofthe governor remaining substantially the same, combining eil'iciency and facility of varying the speed 'or power with cheapness, simplicity, and compaetness, and essentially differing from other governors using iiat or spiral springs, such,jfor inst-ence, as those employing pendent or swinging balls. By the arrangement 'of the springs J within the balls, they are both concealed and protected.

AWhat is here claimed, and desired to besecured by Letters Patent, is 4 y 1. The combination of one or more sliding thimbles or sleeveslK with the radial or guiding-arms E, springs J, andballs F, substantially as and for the purpose specified. 2. The arrangement ofthe springsJwithin the balls, F, and their extensions @encirclingthe radial or `guiding-arms E, essentially-as shown and described. p 3. The lauxiliary removable springs VI, for yoperation' in'eombinat'io with theballs'F and'springs J, whereby the velocity` may be increased or decreased at pleasure, substantially asV specified.

JOHN maritimen. Witnesses 4 Monnrs LAMBORM, J. M. AVERY. 

